Better security starts with better questions
Learn how better questions, trusted AI, and human judgment help security leaders make confident decisions and build resilient systems.
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Secure and verify every identity with Microsoft Entra
Microsoft Entra expands beyond identity and access management with new product categories such as cloud infrastructure entitlement management (CIEM) and decentralized identity.
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Rethinking security for the age of AI
The physics of cybersecurity are changing. Introducing security’s new cyber stack: Project Perception. -
Enhancing AI security through global AI red teaming
Microsoft’s External Red Team Alliance (EXTRA) is a global AI security initiative designed to advance AI safety research and red teaming. -
Email threat landscape: Q2 2026 trends and insights
In the second quarter of 2026, the continuing effects of Microsoft’s disruption of the Tycoon2FA phishing platform contributed to sustained declines in several major phishing techniques, while threat actors expanded into Teams-based social engineering and employed increasingly automated and multi-stage attack chains. Prevent threats with Microsoft Defender
The Microsoft Defender family offers comprehensive threat prevention, detection, and response capabilities for everyone—from individuals looking to protect their family to the world’s largest enterprises.
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Real world incident response: Microsoft and AXA XL strengthen cyber resilience
Our collaboration with AXA XL brings Microsoft Incident Response services directly to cyber insurance policyholders, helping organizations coordinate technical, business, and insurance decisions. -
Microsoft at Black Hat USA 2026: Defending trust in the age of AI and supply chain attacks
Join Microsoft Security at Black Hat USA 2026 for supply chain research, hands-on security experiences, expert conversations, and our reception. -
ACR Stealer: Two observed intrusion chains amid increased threat activity
From late April 2026 to mid-June 2026, Microsoft Defender Experts observed increased ACR Stealer activity across customer environments. -
Least privilege for AI agents: Identity, access, and tool binding
As AI agents become more autonomous, strong identity, access, and auditing controls are critical to keeping them secure. Retain Microsoft Defender Experts
Microsoft Defender Experts are available to strengthen your teams with expertise when and where you need it. Learn how to elevate your security with expert-led services.
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Unpacking the AsyncAPI npm supply chain compromise and import-time payload delivery
Threat actors compromised AsyncAPI packages and weaponized trusted CI/CD workflows to distribute malware through npm. -
Turning threat intelligence into decisive action with Defender Experts
Security teams have never had more visibility, yet rarely have they felt more uncertain. -
Defending SaaS-based applications against ShinyHunters OAuth abuse
Microsoft Threat Intelligence identified threat actor activity with overlapping tradecraft commonly associated with ShinyHunters, including voice phishing (vishing), supply-chain compromise, and misconfigured guest access targeting SaaS-based applications. -
Microsoft Entra ID security updates: Passkeys are the default authentication method in Entra ID
Microsoft Entra ID makes passkeys the default sign-in experience and introduces a new model for SMS and voice authentication.
